Pot plant water tester

This simple device checks if their is water in a pot plant. You stick the two probes(paperclips)into the pot plant and if the LED lights, it means there is water in the pot plant.
You need to adjust the 47k potentiometer to set the level at which the LED goes on.
Submitted by:
Betty Bone
boneb@mweb.co.za
Title: Pot plant water tester
electronic circuit
Source: www.electronic-circuits-diagrams.com
Published on: 2005-02-01
Reads: 874
Print version: ![]()
Other electronic circuits and schematics from Miscellaneous
-
Nocturnal Animals Whisker
-
Time Delay Relay
-
7 Segment LED Counter
-
Ultrasonic Pest Repeller
-
Whistle Responder
-
Time Delay Relay II
-
S-video to RCA
-
Economical Pump Controller
-
Keys Finder
-
SmartCard PC Emulator
